A pole saw is a mini chainsaw with a stick. Although

Cordless Pole Saws:

Electric pole saws which are cordless come along with rechargeable batteries which mostly last for an hour or two. Research a bit and you will find better compatible batteries. Pole saws with Lithium-lon battery do not stop working even if the battery loses charge. About the maintenance part, some pole saw reviews ask the user to sharpen the chain which gives it an edge over the other types of saws.

Electric Pole Saws:

An electric pole saw is a light weight pole chainsaw which needs to be connected to the electricity line via extension cord to make it work. If you want to trim down the little branches of the trees in your garden then just switch it on and chop off the branches as you wish. Considered by the pole saw reviews as the easiest chopping machine, these saws are perfect for the small branches. The size of the blades of the electric pole saws vary from 6' to 10'. You don't have to send it for maintenance as it does not require any.

Also, as they don't have any battery requirements or added engines, they normally come light in weight which makes them easy to handle. But what is not so good about these electric pole saws is that the cord often creates mess in the garden. If you don't look at the ground while going here and there to chop off the branches, the cord may twist with your legs making you fall in the ground.

Gas-Powered Pole Saws:

Gas powered saws are considered the best by some pole saw reviews as they give better performance and never collapse due to an empty battery. The gas pole chainsaws are not like electric pole saws in terms of power supply and performance. As they are incorporated with robust bars as well as heavy-duty chains, you can easily chop off huge branches effortlessly. Most of the gas chainsaws are available with shafts (max of 9') to let you trim even taller trees standing on the ground.

To get the best performance you need to change the gas engines. Better gas engines ensure greater performance. Not only that, as these saws are heavy unlike the light-weight electric pole saw, you can firmly place it in the ground and do your job. Good balance is another positive side of such gas powered saws. Next good thing about such saws is that the gas engines are not louder like the electric engines. So you can enjoy a quieter trimming down in the garden without creating weird loud noise and spoil the peace of mind of your neighbors.